Ceiling fan



FIG. 1 is a bottom plan view of a ceiling fan showing my new design;

FIG. 2 is top perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a front elevational view thereof; and,

FIG. 8 a rear elevational view thereof.

The broken lines in the views show environmental features, which are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a ceiling fan, as shown and described. 